CVE-2025-34324

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The manifest contains package URLs and SHA-256 hashes but is not digitally signed, so its authenticity relies solely on the underlying TLS channel. In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update."}], "value": "GoSign Desktop versions 2.4.0 and earlier use an unsigned update manifest for distributing application updates. 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In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update."}, {"lang": "es", "value": "Las versiones 2.4.0 y anteriores de GoSign Desktop utilizan un manifiesto de actualizaci\u00f3n sin firmar para distribuir actualizaciones de la aplicaci\u00f3n. El manifiesto contiene URL de paquetes y hashes SHA-256, pero no est\u00e1 firmado digitalmente, por lo que su autenticidad depende \u00fanicamente del canal TLS subyacente. En las versiones afectadas, la validaci\u00f3n del certificado TLS puede deshabilitarse cuando se configura un proxy, permitiendo a un atacante que pueda interceptar el tr\u00e1fico de red suministrar un manifiesto de actualizaci\u00f3n malicioso y el paquete correspondiente con un hash coincidente. Esto puede hacer que el cliente descargue e instale una actualizaci\u00f3n manipulada, resultando en ejecuci\u00f3n de c\u00f3digo arbitrario con los privilegios del usuario de GoSign Desktop en Windows y macOS, o con privilegios elevados en algunas implementaciones de Linux. Un atacante local que pueda modificar la configuraci\u00f3n del proxy tambi\u00e9n puede abusar de este comportamiento para escalar privilegios forzando la instalaci\u00f3n de una actualizaci\u00f3n manipulada."}], "id": "CVE-2025-34324", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-34324", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-11-18T18:24:08.434766Z", "version": "2.0.3"}}]}, "published": "2025-11-18T17:16:00.923", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://infocert.digital/consumer/gosign-suite/"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.ush.it/2025/11/14/multiple-vulnerabilities-gosign-desktop-remote-code-execution/"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.ush.it/2025/11/14/vulnerabilita-multiple-gosign-desktop-esecuzione-remota-codice-arbitrario/"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/gosign-desktop-insecure-update-mechanism-rce"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.ush.it/2025/11/14/multiple-vulnerabilities-gosign-desktop-remote-code-execution/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.ush.it/2025/11/14/vulnerabilita-multiple-gosign-desktop-esecuzione-remota-codice-arbitrario/"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"created": "2025-11-20T10:30:50.816227+00:00", "updated": "2025-11-20T10:30:50.816252+00:00", "vendors": ["tinexta_infocert", "tinexta_infocert$PRODUCT$gosign_desktop"]}